Boring or prilling machine



(No Model.) v 2 Sheets-Sheet 1. W. S. SHERMAN. BORING 0R DRILLING MACHINE.

No. 515,506. Patented Feb. 27, 1894.

wvwn lo z Wibmwaao {K0 Model.) v 2 Sheets-Sheet 2.. W. S. SHERMAN.

BORING 0R DRILLING MACHINE. N0. 515,506. Pair-mtedFeb 27, 1894.

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UNITED STATES PATENT OFFICE.

W'ILLIS S. SHERMAN, OF HEBMANSVILLE, MICHIGAN.

BORING OR DRILLING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 515,506, dated February 27. 1894.

Application filed July 14;, 1893. erial No. 480,523. (No model.)

To all whom it may concern:

Be it known that I, WILLIS S. SHERMAN, a citizen of the United States, residing at Hen mansville, in the county of Menominee, State of Michigan, have invented certain new and useful Improvements in Boring or Drilling a d. a p e to l e v he i n ace Pffli tail end of a matcher, and provision being made for the adjustment of the drill-headto and from the face of the s tationary, guide of the matcher to adj ust the same for operation upondifierent widths of boards. The arm carrying the drill-head is pivotally mounted so as to be thrown up out of the way when. not in use and is so mounted. that the head may ideperfectly free upon the flooring and at the same time be held against any tend-, ency to side movement under strain. In order to give greater pressure on the drill-head, or of the head upon the material being operated upon, without increasing the weight of the machine the belt pulleys arearranged so that the strain on the belt forces the head down onto the work so that the belt thus pulls the hardest when the hole is being drilled or bored and so forces the head down'the' hardest just at that time. If desired, weights may be added to the arm which carries the drillhead to give any desired pressure to'feed the drills and so keep the head rolling steadily withoutjumping.

Other objects and advantages of the'invem tion will hereinafter appear and the novel features thereof will be specifically defined by the appendedclaims. i

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this specification and in whichbase.

Figure l is a View, partly in elevation and partly in section, with portions broken away, showing my improvements. Fig. 2 is a section' on the line 2-2 of Fig. 1, with parts in elevation. Fig. 3 is an elevation with parts removed, portions broken away and a portion in section, the section being taken on the line 3-3 of Fig. 1. Fig. 4 is a detail in bottom plan, of the drill-head with a portion broken away. ike letters of reference indicate throughout the several views.

Referring nowto the details of the drawings by letter, A designates the stationary guide of a matcher of known or. approved construction, which guide is fastened to the -face of the bed A on the tail end of the ma- ,cliinefiin any suitable manner, as by the bolts a, see Fig. 3. v The base B is adj ustably fastoned to" the stationary guide by means of like parts the vertical bolts a which pass through elongated slots bin the base as shown best in Fig. 1, whereby the base may be easily adjusted to adapt the head for working upon different widths of boards; The guideA being usually of a right-angled shape as seen in Fig. l in cross section, in order to get a firm fastening for the base some fusible metal, such as :fbabbitt, BI is employed to fill the space as shown in Fig.1, the metal being properly anchm-ea in the guide, and the screws being passedjthrough the same into the horizontal Mportion'of the guide as seen best in Fig. l.

The babbittis alsorun into the groove ct of the pa e to form a guide rib a which will serve to prevent any side movement of the This manner of fastening the parts appnesom where the guide is of the form herein shown; when other forms of guide are emlayed the manner of fastening will have to be modified accordingly.

mounted the axles or shafts 0 upon which is pivotally mounted the arm D, as shown best in Fig. 3. "Set screws 0 are employed for holding the tubular portion of this arm to the shafts'asshown in said Fig. 3;

on the shaftsor pins 0 are journaled the pulleys G and C as seen in Fig. 3, the outer ends of the pins or shafts having headed flanges c as seen in said figure to hold the pulleys on to the shafts as will be readily un derstob'd from said view. These piils or shafts vare formed in their outer ends with oil passages c which communicate with a side passage 0 through which the oil may pass to the bearings. The bearings of the pins or shafts in the bifurcations of the base are also provided with oil passages 0 through which oil may find its way to the bearings, all as shown in Fig. 3.

The base is provided at its front with a projeotio'n b which is formed with a recess or socket as seen in Fig. lin which is held a cushion blockb which is arranged between the bifurcations of the arm D as seen best in Fig. 2. This serves to prevent jar in case the material is not fedev'enly to the machine and a spa e occurs between two pieces being opeii'f ted upon, in which case the head will drop slightly ihto said space; it then falls against this yielding cushion; This projection fol-ins a slide in connection with a central recess in the lower part of the arm D and thus prevents side motion of the arm aiid strain on thepivot joint, which would be caused by the rolling of the head on the material being operated upon. The upper end of the arm D forms a boxer bearing for the extension of the head. This upper part of the arm is con;

sequently tubular as seen in Fig. 1 and is inclined 'at an angle of about forty-five degrees from a perpendicular as shown. In this tubu- 1st portion 1)" is joiirnaled the tubular extenr sion E of the head E and lateral motion of the head in the journal box is takeh upby the collar e which is held to the inner end of 16 extension E by set screws 6' as seen in F and F are bushings in opposite ends of the tubular extension E as shown in Fig. 1

and G is a shaft journaled in said bushings;

to the lower end of which shaft is keyed the bevel gear G.

overhead and this belt runs in the direction of the arrows in Fig. 1, around the pulleys O and 0 over one and under the other and by this arrangement the strain on the belt forces the head down onto the material being oper-' ated upon and thus the belt pulls the hardest when the hole is being drilled, thus giving.

greater pressure on the head without increasing the weight of the machine.

G represents a piece of board being operated upon.

The shaft G is formed with an oil passage g which has branches g and g as seen in Fig. 1 through which oil may flow to the journals or bearings.

The main disk-part of the head has a traction ring E through which project and in To the upper end of this shaft is secured a pulley H which is held thereto which are jour'naled the drills I, of any suit able construction, preferably of plaiii steel wire sharpened to a drill point and fastened in the drill spindles I by set screws 1; which pass through the collars t" on the outer ends of the drill spindles and through the spindles and bear against the drills, as shown in Fig. 1. The drillspindles are carried by the disk J I which is detachably secured to the main disk of the head as by screws j. The inner ends of the drill spindles have fixed thereon the bevel gears K which mesh with the gear G as seen in Figs. 1 and 4:. The disk J is provided with oil passages j which pass through the drill spindles as shown in Fig. 1 so that the oil may readily find it's way to the bearings or journals. H p

With the parts constructed and arranged substantially as above set forth the operation is as follow'sg -the material G is fed along in the directibn of the arrow and the head is revolved by means of the traction ring of the head fittihg and riding on the tongue of the board as shown in Fig. 1 and the drills are entered in the board one after another and revolved by the belt, pulleys and gears, form'- ing holes for the reception of the nails at intervals determined by the relative distance between the drills in the head, which maybe arranged nearer together or farther apart as necessary. The head is adjusted in or out according to the width of the board by means of the screws (1.;

Modifications in detail may be resorted to without departing from the spirit of theinvention' or sacrificin any bf its advantages.

What I claim as new is'-' y 1. The combination with the base having elongated slots of a matcher guide having a space; a filling therein; a bolt passed through said slot and filling into the matcher giiide and a rotatable drill head moiihted on said base and carrying a plurality of rotatable boring tools,- substantially as specified.

2. The combination with the base having elongated slots of a mateher guide having a space, a filling therein. a bolt passed through said slot and filling into the matcher guide and a rotatable drill head mounted on said base and carrying a plurality of rotatable boring tools and having its shaft mounted in a pivotally-s'upported bearing, substantially as specified.

3. The combination with the base having a groove and longitudinal slots, of a matcher guide of substantially right-angled shape and a filling of soft metal therein extending into the groove of the base and apivotally-niounted rotatable drill head carrying a plurality-of rotatable boring tools, substantially as specified.

4. The combination with the base having an angular extension, of drill head supporting arm pivotally mounted in the base and having a bearing for the shaft of the drill head and a rotatable drill head carrying a plurality of boring tools and a cushion on the base be- IIO tween the pivot of the arm and the drill head, substantially as specified.

5. The combination with the base having an extension, of the arm pivotally mounted on the base and having a recess to receive said extension, the drill head rotatably mounted in the arm and a cushion in the extension between the pivot of the frame and the drillhead, substantially as specified.

6. The combination with the base adjustably mounted on the stationary guide of a matoher, of an arm pivotally mounted on the base on two independent shafts, a pulley on each shaft and set screws for holding the tubular portion of the arm to the shafts, substantially as specified.

7. The combination with the base having forked rear portion, of the arm having tubular portion held between the forks of said base, and the independent shafts held in the bifurcations, the pulleys on the shafts, the set screws for holding the tubular portion of the arm on the shafts and the rotatable head carrying rotatable boring tools, substantially as specified.

8. In a boring and drilling machine, the combination with the base having forked portion, the shaft supported in the fork of the base, the pulley thereon and held against end movement by the flange on the outer end of the shaft and the pivotally-supported shaft 7 carrying a drill head, substantially as specified.

9. In a boring and drilling machine, the combination with the guide, of the base with groove and elongated slot and the filling 1n the guide extended into the slot, the ad; usting screw and the drill head arm mounted on said base, substantially as specified.

10. In a boring and drilling machine, the combination with the pivoted arm and the pulley mounted on an inclined shaft thereon, and the drill head mounted on the other end of said shaft, of the pulleys carried by horlzontal shafts and the belt passed from one of said pulleys around the pulley on the inclined shaft and back under the other pulley on the horizontal shaft, substantially as and for the purpose specified.

In testimony whereof I affix my signature m presence of two witnesses.

WILLIS S. SHERMAN.

Witnesses:

R. TH. MILLER, JOHN P. OLEMENrs. 

